It is true that nowdays , the personal data of peoples is held by massive internets companies and organization. While there are some benefits of this trend, I believe the demerits outweigh the merits.
There are number of benefits is that companies can use this information to inprove their services. For instance by using data, coustomers know about the new upcoming products or special offers and often get 50% discount and collect the effective products. This can save time. Additionally, companies know their users and select effective product in future. For example: One of the best mobile company is Apple, they collected data from people therefor, company can provide data in message and E-mail. Hence, coustomers know there new product with details and it is also save coustomers valuable time.
On the other hand, the drawbacks are much more serious lack of data. In this modern area people use internet or social media and also they use mobile banking. In world, both white hackers and black hackers are available. If black hackers hack companies database and they get information such as financial details, or password. Public and many famous person should be in danger. For example: In resent BBC news published the famous Internet company is IT internet., it hacked by black hackers. Thus, coustomers of IT internet were afraid about their data.
In conclution, in present personal information of coutomers is held by large internets industry and organization. I would argue that it should not ever held personal data.